GingerAle

This isn’t harassment, EW; it’s an observation of your presentation style. Your presentation style may suggest ignorance, but your lazy indifference is very obvious.  If you care enough to answer the question, you should present your solution with reasonable comprehension and basic instructional formality.  Even after correcting your answer, you still did not include the units. 

You are not an island on this forum: over the years, thousands will read this question and your answer. If yours was the only one on this thread, they would leave with no more knowledge than they came with, and some would leave dumber than they arrived.  Dumbness is contagious! So is laziness!

GA     

Emerald Wonder, if you want to answer physics questions (or any type of applied mathematics), you should demonstrate the application of the relevant equations, including the proper use of units. Plopping half-hearted, unintelligible bullshit along with a wrong answer is not a substitute. 

\(\bf \Large \beta \small \left(dB\right) \large =10\log_{10}\left(\frac{I}{I_0}\right) ~ | ~ \bf \tiny \text {(β) = sound intensity level in decibels; (I) = intensity in watts per meter squared; } I_0 \text { = standard corresponding to zero (0) decibels. }\\\\ \small \dfrac{20W}{10m^2} =\dfrac{2W}{m^2} \quad | \quad \bf \tiny \text {Convert point source area of sound to standardized area of one (1) square meter. }\\ 10\log_{10}\left(\frac{2W\cdot m^{-2}}{10^{-12}W\cdot m^{-2}}\right) = 123 ~ \small \bf dB \normalsize \quad | \quad \tiny (10^{-12}W \cdot m^{-2}) \text { -standard zero (0) decibel reference. }\\ \)

GA

Now correct me if I'm wrong but this site people come to to get answers. (sic)

Well ... yes, it is. I’m sure it wasn’t the creator’s original intent, but over time, it’s morphed into a homework answer and a defacto “cheating” forum. Diligent students can certainly learn from this, but for most, it presents only an illusion of knowledge, with no real substance of learning.     

... Anyone can come to this site and post questions as well as answers..  Nowhere does it state that you are obligated to even click on my question. Muchless read it or even answer it!! (sic)

Yep; you’ve summed it up in three generalized, poorly punctuated, sentences. 

Instead of wasting our time you can simply move on along, leave me alone, quit wasting MY time!!  (sic)

Yes, I could simply have moved on, and you could have simply pursued further explanation on your original post rather than repeatedly posting the same question with the expectation that someone will present a solution that magically gives you an understanding of the prerequisite concepts. 

Your comments on your pervious post indicated a sincere desire to learn this material.   So I spent the time to present detailed information on where you can learn the techniques to solve that particular type of statistical problem and where to learn the prerequisite concepts.  That took about 60 minutes to research, verify, and post –well longer than the five minutes needed to just answer this simple question.   (No comments about this; just bitching about harsh bullying.)

I then see this post, with your repeated question and a lament about three different answers.  I then knew with certainty that the time I invested in responding to your question was wasted.   So I trolled your lame and lazy ass. That pissed you off, so I at least recovered something from my investment of time. 

BTW, I am not a guy.   Most children –even very young children know this. But maybe you lack the prerequisites for this subject, too.  Do you need links that will help in gender recognition?  ...Meh, that’s just a waste of time. 

GA

Really?! How did that happen? Was it magic, or did you actually visit and review the links I posted for you? 

Doing that might give magical-like results, but you should know it’s not really magic.

GA

Well now you have four answers, and you are too bloody dumb to know if any of them are correct.

 Lets’ see ... 

The reason you cannot teach yourself (this level of) math is because you lack the prerequisites.

To understand the solution to the question you posted, requires an understanding of the Binomial Cumulative Distribution Function.   Your attempted answer did not include any binomial functions, and this indicates you are at least three prerequisites behind in the skills needed to solve problems of this type.   

This video will help you understand the specific skills needed for your presented question.

This is very simple! The reasons you do not know the formula is because you are not paying attention in class and you are not reading your assigned texts.  Translation: you are fucking around instead of studying.

This question describes a class-three (3) fulcrum. The fulcrum is to one side (the broom top), the load is on the other side, and the effort is in the middle. A class-three (3) lever always has an Ideal Mechanical Advantage of less than 1. For a broom, the mechanical disadvantage translates to a distance advantage. That is, a short motion near the fulcrum results in a longer motion further away.  

The formula is the same for all three classes of levers.

  \(\bf IMA = \dfrac{d_i}{d_o}\) where i and o are the input and output distances from the fulcrum. 

GA

CPhill,

You may appreciate the first “Mad Magazine” with a UPC.

Despite Mad’s hope of jamming every computer, in 1978 it’s unlikely that even one retail sale was preceded by a scan of this UPC. 

GA

To use and assign values to variables on the site calculator use this input format with the semicolon as the delimiter:

Example input:

a=3;b=4; sqrt(a^2+b^2)

a=4;b=5; sqrt(a^2+b^2)

Reserved letters are (e) and (i),  

Upper and lower cases are the same variable

The calculator accepts large variable names

Example input:

banana=4; daiquiri=5; sqrt(banana^2+ daiquiri^2)

This “calculator” is actually a computational engine –the most powerful one on the net until Wolfram alpha came on line.  Over the years, selective neutering greatly reduced its power and the demands on the network servers.

There was never any significant documentation for advanced use of this calculator. Andre Mossow left that that as an exercise for the world’s geeks, boffins, and genetically enhanced chimps, like Lancelot Link, who documented its creation from the days when it was an embryonic “slide rule”  

GA